Sectional boiler



Oct. 27

w. D. HINCIHEY SECTIONAL BOILER Filed Feb '7, 1925 A TTORNE Y Patented Oct. 27, 1925.

UNITED STATES WILLIAM :o. HINCH'EY, or NEW .YoRK, n. Y.

SECTION'AL BOILER.

Application filed ZEebruar-y 7, 1923. Serial 110.621 7338.

To all whom it may concern:

Be it known that LWILLIAM D. Hmonnr,

a citizen of theiUnited States, and aresident of New York city, in the county of New York and State of New York, have invented certain new and useful Improvements in Sectional Boilers, of which the fol- 1 lowing is a specification.

This invention relates to improvements in boilers of the type having transversely positioned vertical sections use-d for .low pressure steam or hot water heating.

One of the objects of the invention is to provide a sectional boiler of novel construction so designed that the heat absorbing surfaces will utilizeall the available heat in heating the water and generating the steam.

Another object is to provide sections form. 90 ing series of vertical water chambers spaced apart transversely and 'extendingin longitudinal rows.

Afurther object is to provide a sectional boiler having vertical flues through which the gases or products of combustion flow in paths substantially parallel to those in which they leave the burning fuel.

\Vith these and other objects in View, my invention comprises an efficient and flexible sectional boiler having a plurality of water containing chambers so disposed and arranged that certain of the chambers are heated, directly, by the heat of the burning fuel, and the others, indirectly, by absorption of heat from the gases or products of combustion. Various modifications may be made in the construction and arrangement hereinafter described without departing from the scope of the invention as defined in the appended claims.

In the accompanying drawings, illustrating one embodiment of my invention,

Fig. 1 is a perspective view of a plurality of assembled sections,

Fig. 2 is a section in elevation on the line 2-2 of Fig. 1,

Fig. 3, is a perspective view of a frontsection and an intermediate section in assembling position but spaced apart, and,

Fig. 4, is a horizontal section on the line 4-4 of Fig. 2.

My improvements relate particularly to the construction and arrangement of the sections and accordingly I have eliminated from the drawings all parts of the boiler that-are "not essential to :the -.description of the invention.

The assembled structure, shown in Fig.

1, comprises a front section 1, aarearsection 2, and a plurality of similar intermediate sections 3, the number of intermediateisections used depending upon the desired boiler capacity. The sections are made of cast metal and are secured together, face to face, by any suitable means such, for-example, as tie-bolts 1 extending between lugs 5011 the front andirear sections respectively. Each section is formed with an inlet port 6 andan outlet port 7, the respective ports of the several sections being suitably interconnected, preferably by manifolds '8 and 9, to permit free circulation of waterthrough all the sections.

The front section 1 is formed with a fire door opening 10, a cleaning door opening 11, and a series of spaced vertical water chambers 12, the spaces between adjacent chambers providing openings 13 in the front through which the flues may readily be cleaned.

The. intermediate sections 3 are each formed with a similar series of water chambers l2 and an additional water chamber 14: which latter chamber is spaced from the innermost chamber 12 and forms a part of the outer wall of the fire and combustion chamber 15.

The rear section 2 is preferably formed of a single hollow chamber as seen in Figs. 2 and 4, and constitutes the back of the combustion chamber 15.

The upper and lower ends respectively of alternate chambers 12 are reduced in cross section, as seen in Fig. 3, thereby providing passages 16, when the sections are secured together, through which the gases or products of combustion pass from the combustion chamber 15 into and through the series of vertical flues 17 and out through the chimney outlet 18.

In operation of the boiler, the water contained in the chambers 14 and 12, forming the sides of the combustion chamber 15, is heated by the direct heat of the burning fuel while that contained in the remaining chambers 12 is heated indirectly through absorption of heat from the gases or products of combustion passing through the fiues 17 My improved section boiler has a fire and combustion chamber 15 of greater height than width, and it so designed that a greater part of the heat absorbing surfaces is heated indirectly. Accordingly I am able to attain the required degree of heat with a minimum quantity of fuel, to pro cure more perfect combustion, and to utilize all of the available heat of the fuel in heating the water and generating steam.

It willbe understood that the boiler is provided with suitable casing having doors for closing the openings 13 and the fuel and ash openings 10 and 11, and that-the combustion chamber 15 is provided with a grate of any ordinary or preferred construction.

What I claim is:

i. In a sectional boiler having associated transversely extending vertical sections forming a combustion chamber and interconnected water chambers, a hollow back section, a plurality of intermediate sections each comprising hollow top and bottom portions directly connected at intervals by hollow vertical portions, the upper and lower ends respectively of alternate vertical portions being reduced in cross section to provide passages through which the gases may flow from the combustion chamber into the 1 spaces between adjacent vertical portions 2. In a sectional boiler having associated transversely extending vertical sections forming a combustion chamber and interconnected water chambers, a hollow back section, a plurality of intermediate sections each comprising hollow top and bottom portions directly connected at intervals at one side of the combustion chamber by hollow vetrical portions, the upper and lower ends respectively of alternate vertical portions being reduced in cross section to provide passages through which the gases may flow from the combustion chamber into the spaces between adjacent vertical portions and out through a side of the boiler, a hollow front section having spaced hollow vertical portions in alignment with the vertical portions of the intermediate sections, and an external flue connected to the discharge passages below the top of the boiler.

A boiler section comprising a hollow top chamber, a hollow side chamber connected therewith, a hollow bottom chamber spaced from the side chamber to allow for insertion of a grate, and a plurality of spaced hollow vertical chambers directly connecting the top and bottom chambers, the vertical chambers being parallel to the side chamber and to each other, and being spaced from the side chamber to provide a combustion chamber therebetween, the upper and lower ends respectively of alternate vertical chambers being reduced in cross section.

WILLIAM D. HINCHEY. 

